| 摘要 |
By means of the arrangement, injection material is placed in boreholes (10) which start from the surfaces of the underground cavities (11). The arrangement has a unit (1, 2) for preparing the injection material and a controllable pump unit (3) for delivering the injection material to a distribution chamber (4). The distribution chamber (4) is provided with a multiplicity of outlet connections (8), to which one hose line (9) each for the delivery of the injection material to the bore holes can be attached. Furthermore, the arrangement has a control unit to which measured values for each outlet connection (8) regarding volumetric flow and pressure are fed. These measured values are used for the independent control of flow-control valves attached to the outlet connections (8). With the arrangement, various boreholes can be simultaneously provided with injection material under various working conditions by virtue of the fact that injection flow and injection pressure can be independently monitored and controlled for each borehole. <IMAGE> |
